Single photon frequency conversion for frequency multiplexed quantum networks in the telecom band

• URL: http://arxiv.org/abs/2104.01881v1
• Date: Mon, 5 Apr 2021 12:41:06 GMT
• Title: Single photon frequency conversion for frequency multiplexed quantum networks in the telecom band
• Authors: Paul Fisher, Robert Cernansky, Ben Haylock, Mirko Lobino
• Abstract summary: High-speed long-range quantum communication requires combining frequency multiplexed photonic channels with quantum memories. We experimentally demonstrate an integrated quantum frequency conversion protocol that can convert between wavelength division multiplexing channels in the telecom range with an efficiency of $55pm 8%$ and a noise subtracted HOM dip visibility of 84.5%.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: High-speed long-range quantum communication requires combining frequency multiplexed photonic channels with quantum memories. We experimentally demonstrate an integrated quantum frequency conversion protocol that can convert between wavelength division multiplexing channels in the telecom range with an efficiency of $55\pm 8\%$ and a noise subtracted HOM dip visibility of 84.5%. This protocol is based on a cascaded second order nonlinear interaction and can be used to interface a broad spectrum of frequencies with narrowband quantum memories, or alternatively as a quantum optical transponder, efficiently interfacing different regions of a frequency-multiplexed spectrum.

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